﻿#region Copyright (c) 2003 - 2008, Andreas Mueller
/////////////////////////////////////////////////////////////////////////////////////////
// 
// Copyright (c) 2003 - 2008, Andreas Mueller.
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// which accompanies this distribution, and is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// Contributors:
//    Andreas Mueller - initial API and implementation
//
// 
// This software is derived from software bearing the following
// restrictions:
// 
// Copyright (c) 1994
// Hewlett-Packard Company
// 
// Permission to use, copy, modify, distribute and sell this software
// and its documentation for any purpose is hereby granted without fee,
// provided that the above copyright notice appear in all copies and
// that both that copyright notice and this permission notice appear
// in supporting documentation.  Hewlett-Packard Company makes no
// representations about the suitability of this software for any
// purpose.  It is provided "as is" without express or implied warranty.
// 
// 
// Copyright (c) 1996,1997
// Silicon Graphics Computer Systems, Inc.
// 
// Permission to use, copy, modify, distribute and sell this software
// and its documentation for any purpose is hereby granted without fee,
// provided that the above copyright notice appear in all copies and
// that both that copyright notice and this permission notice appear
// in supporting documentation.  Silicon Graphics makes no
// representations about the suitability of this software for any
// purpose.  It is provided "as is" without express or implied warranty.
// 
// 
// (C) Copyright Nicolai M. Josuttis 1999.
// Permission to copy, use, modify, sell and distribute this software
// is granted provided this copyright notice appears in all copies.
// This software is provided "as is" without express or implied
// warranty, and with no claim as to its suitability for any purpose.
// 
/////////////////////////////////////////////////////////////////////////////////////////
#endregion

using System.Collections;
using System;

namespace NStl.NUnit.Support.SupportTests.NUnitRegression
{
    /// <summary>
    /// Simple adapter to catch special treatments when an ICollection is also an IList, etc.
    /// </summary>
    class CollectionAdapter : ICollection
    {
        internal CollectionAdapter(IEnumerable c)
        {
            inner = c;
        }
        internal CollectionAdapter(params object[] c)
            : this((IEnumerable)c)
        {}
        private readonly IEnumerable inner;
        #region ICollection Members

        void ICollection.CopyTo(Array array, int index)
        {
            foreach(object o in this)
                array.SetValue(o, index++);
        }

        int ICollection.Count
        {
            get
            {
                int count = 0;
                IEnumerator e = inner.GetEnumerator();
                while(e.MoveNext())
                    ++count;
                return count;
            }
        }

        bool ICollection.IsSynchronized
        {
            get { return false; }
        }

        object ICollection.SyncRoot
        {
            get { return inner; }
        }

        #endregion

        #region IEnumerable Members

        IEnumerator IEnumerable.GetEnumerator()
        {
            return inner.GetEnumerator();
        }

        #endregion
    }
}
